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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1490 (Rear Wheel Steering System) >> Diagnostic Information and Procedures >> Diagnostic System Check - Rear Wheel Steering >> Test Description

Test Description

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers in the diagnostic table.

  1. 2. Lack of communication may be due to partial or total malfunction of the class 2 serial data circuit. The specified procedure will determine the particular condition.
  2. 4. The symptom list in Symptoms will determine the correct diagnostic procedure to use.
    Fig 1: Diagnostic System Check - Rear Wheel Steering (Step 1-3)
    G01455257Courtesy of GENERAL MOTORS CORP.
    Fig 2: Diagnostic System Check - Rear Wheel Steering (Step 4-7)
    G01455258Courtesy of GENERAL MOTORS CORP.
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